School 2013 Ep. 15 is now available in OS.

A student, Go Nam Soon, studies at a Seungri High School, where he is always bullied by a gang led by Oh Jung Ho. At the beginning of the school day, his class 2 gets a new homeroom teacher called Jung In Jae , who finds it hard to control the class. Later a new teacher named Kang Sae Chan arrives at school, who happens to be appointed as co-homeroom teacher to class 2.